Nodal quasi-particles and coexisting orders in striped superconductors
Abstract
We study the properties of a quasi-one dimensional superconductor which consists of an alternating array of two inequivalent chains. This model is a simple charicature of a locally striped high temperature superconductor, and is more generally a theoretically controllable system in which the superconducting state emerges from a non-Fermi liquid normal state. Even in this limit, ``d-wave like'' order parameter symmetry is natural, but the superconducting state can either have a complete gap in the quasi-particle spectrum, or gapless ``nodal'' quasiparticles. We also find circumstances in which antiferromagnetic order (typically incommensurate) coexists with superconductivity.
Keywords
Cite
@article{arxiv.cond-mat/0010350,
title = {Nodal quasi-particles and coexisting orders in striped superconductors},
author = {M. Granath and V. Oganesyan and S. A. Kivelson and E. Fradkin and V. J. Emery},
journal= {arXiv preprint arXiv:cond-mat/0010350},
year = {2009}
}
Comments
4 pages, 1 figure, 1 table new version; vastly improved figure caption